Last time I divided the world gdp by population I believe it was around 14k, that's for every man, woman, other, and child. That goes a long way in some places but things would get more expensive if we evened out the wealth between countries. Still they'd be cheaper than current us prices. Production would go down a bit because people wouldn't be forced to work, but probably we wouldn't make as much stupid bullshit, let's call that a wash, so I reckon it's more than enough to put everyone at the level of a US lower middle class. Oh and call me a fascist but population would probably even out or drop in this scenario and that would've a good thing for the planet